A discount coupon is an electronic exchange certificate issued by Tiger Brokers. It allows the client to exchange it for rewards at a discounted price. To use the coupon, you need to have a Tiger Prime Account with available funds greater than or equal to the exchange amount or equivalent to ensure a successful debit. After the client redeems and pays successfully with the discount coupon in the Reward Center, the redeemed reward will be issued to the client's Reward Center within 1 working days.